diff --git a/metadata/context.go b/metadata/context.go
index 858566d1..9e7cf4de 100644
--- a/metadata/context.go
+++ b/metadata/context.go
@@ -108,7 +108,11 @@ func NewOutgoingContext(ctx context.Context, md Metadata) context.Context {
 }
 
 // AppendOutgoingContext apends new md to context
-func AppendOutgoingContext(ctx context.Context, md Metadata) context.Context {
+func AppendOutgoingContext(ctx context.Context, kv ...string) context.Context {
+	md, ok := Pairs(kv...)
+	if !ok {
+		return ctx
+	}
 	omd, ok := FromOutgoingContext(ctx)
 	if !ok {
 		return NewOutgoingContext(ctx, md)
@@ -120,7 +124,11 @@ func AppendOutgoingContext(ctx context.Context, md Metadata) context.Context {
 }
 
 // AppendIncomingContext apends new md to context
-func AppendIncomingContext(ctx context.Context, md Metadata) context.Context {
+func AppendIncomingContext(ctx context.Context, kv ...string) context.Context {
+	md, ok := Pairs(kv...)
+	if !ok {
+		return ctx
+	}
 	omd, ok := FromIncomingContext(ctx)
 	if !ok {
 		return NewIncomingContext(ctx, md)
diff --git a/metadata/metadata.go b/metadata/metadata.go
index 9428fe27..1f581554 100644
--- a/metadata/metadata.go
+++ b/metadata/metadata.go
@@ -111,3 +111,19 @@ func Merge(omd Metadata, mmd Metadata, overwrite bool) Metadata {
 	}
 	return nmd
 }
+
+func Pairs(kv ...string) (Metadata, bool) {
+	if len(kv)%2 == 1 {
+		return nil, false
+	}
+	md := New(len(kv) / 2)
+	var k string
+	for i, v := range kv {
+		if i%2 == 0 {
+			k = v
+			continue
+		}
+		md.Set(k, v)
+	}
+	return md, true
+}
diff --git a/metadata/metadata_test.go b/metadata/metadata_test.go
index f580f5aa..f8215150 100644
--- a/metadata/metadata_test.go
+++ b/metadata/metadata_test.go
@@ -5,6 +5,28 @@ import (
 	"testing"
 )
 
+func TestAppend(t *testing.T) {
+	ctx := context.Background()
+	ctx = AppendIncomingContext(ctx, "key1", "val1", "key2", "val2")
+	md, ok := FromIncomingContext(ctx)
+	if !ok {
+		t.Fatal("metadata empty")
+	}
+	if _, ok := md.Get("key1"); !ok {
+		t.Fatal("key1 not found")
+	}
+}
+
+func TestPairs(t *testing.T) {
+	md, ok := Pairs("key1", "val1", "key2", "val2")
+	if !ok {
+		t.Fatal("odd number of kv")
+	}
+	if _, ok = md.Get("key1"); !ok {
+		t.Fatal("key1 not found")
+	}
+}
+
 func testCtx(ctx context.Context) {
 	md := New(2)
 	md.Set("Key1", "Val1_new")